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## #1 2008-05-12 03:32:12

Janiffer
Member
Registered: 2008-04-26
Posts: 12

### Matrix

suppose A is a 4x3 matrix and C is a 3x4 matrix such that CA=I3. Suppose further that for some given b in R4, the equation Ax=b has atleast one solution. Show that this solution is unique...

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## #2 2008-05-12 13:04:36

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

### Re: Matrix

Multiply both sides on the left by C.

[This is my 2000[sup]th[/sup] post.]

Last edited by JaneFairfax (2008-05-12 13:06:44)

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## #3 2017-05-22 15:18:05

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,239

### Re: Matrix

JaneFairfax wrote:

[This is my 2000[sup]th[/sup] post.]

How many years did it take you? I want to reach 2,000 as well.

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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## #4 2017-05-22 21:49:57

Member
From: Planet Mars
Registered: 2016-11-15
Posts: 766

### Re: Matrix

How many years did it take you? I want to reach 2,000 as well.

According to her date of registration and her post date, it took her 1 year 80 days to reach 2000 posts.

Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam

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## #5 2017-05-23 00:11:40

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,196
Website

### Re: Matrix

It appears the [sup][/sup] tags do not work anymore.

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## #6 2017-05-23 15:31:41

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,239

### Re: Matrix

How many years did it take you? I want to reach 2,000 as well.

According to her date of registration and her post date, it took her 1 year 80 days to reach 2000 posts.

Wow, I hope I can reach it at least in 2019.

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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## #7 2017-05-23 18:32:00

Member
From: Planet Mars
Registered: 2016-11-15
Posts: 766

### Re: Matrix

zetafunc wrote:

It appears the [sup][/sup] tags do not work anymore.

What was the [sup]...[/sup] tags used for??

Hi Monox D. I-Fly, You can also reach it in 2018 if you continue posting in this rate.

Last edited by iamaditya (2017-05-23 18:39:42)

Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam

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## #8 2017-05-23 18:37:37

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,196
Website

### Re: Matrix

They were used for superscript, i.e. changing text from 2 to ².

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## #9 2017-05-23 18:42:47

Member
From: Planet Mars
Registered: 2016-11-15
Posts: 766

### Re: Matrix

Then why was it removed?

Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam

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## #10 2017-05-23 18:47:37

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,196
Website

### Re: Matrix

I think the forum was updated and the tags haven't yet been updated (or are incompatible with the new forum).

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